Harold J. Stern

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Hammersmith Grove, GB

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Patents Grantslast 30 patents

Information Patent Grant
Polishing of silver-plated articles
- Patent number 4,270,932
- Issue date Jun 2, 1981
- H.L.P. Imports Ltd.
- Lawrence M. Perovetz
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...